Across |

1. | Side opposite over side adjacent |

6. | Triangle with two equal sides |

7. | Triangle greater than 90 degrees |

9. | Greek word meaning "to measure" |

10. | Can be broken down to 60 equal parts called minute |

12. | Study of the measurement of triangles |

14. | Measuring things using ruler or tape measure. |

16. | A polygon with three sides, corner or vertices |

17. | Angle with same terminal side |

21. | Hypotenuse over side adjacent |

23. | A Greek mathematician who lived at about 540 B.C. |

25. | The longest side of a triangle |

26. | Side opposite over hypotenuse |

27. | Angle between the horizontal at the observer's eye and a line from the observer's eye to some point above him |